Nestled in Cardston County in southern Alberta, Magrath sits roughly 32 kilometres south of Lethbridge – about a 25-minute drive – and approximately 242 kilometres south of Calgary, placing it comfortably within the agricultural heartland of the province. The town covers a land area of 5.88 square kilometres and recorded a population of 2,481 residents in the 2021 Canadian census, reflecting steady growth from 2,374 in 2016 and 2,217 in 2011. That 2021 figure translates to a population density of roughly 422 people per square kilometre across the town’s 830 private dwellings.
Magrath’s origins trace back to 1899, when settlers recruited by the Alberta Railway and Irrigation Company – primarily members of the Church of Jesus Christ of Latter-day Saints arriving from Utah and Idaho – established the community and constructed what became the first large-scale irrigation system in Canada. Funded by British interests connected to the family of Sir Alexander Galt, the ninety-mile canal network was completed in November 1899 and continues to supply water to farmers across southern Alberta to this day. The town takes its name from Charles Alexander Magrath, Sir Alexander Galt’s son-in-law. In recognition of this pioneering water infrastructure, Magrath was historically known as the Irrigation Capital of Canada, and later earned the nickname the Garden City for its abundant trees and natural surroundings. The town’s layout was modelled after the Church of Jesus Christ of Latter-day Saints’ Plat of Zion urban design, and also shares connections to the British Garden City tradition developing in England during the same era. Magrath’s first post office opened on 1 March 1900, with Ammon Mercer serving as postmaster. Religious affiliation within the community remains predominantly Protestant, according to census data, with the Church of Jesus Christ of Latter-day Saints forming a significant portion of that population.